HR30 Day 12: Inheritance

1 개요

Day 12: Inheritance

• https://www.hackerrank.com/challenges/30-inheritance/problem

해커랭크 30 Days of Code

문제	풀이
10-19 Day e
HR30 Day 10: Binary Numbers
HR30 Day 11: 2D Arrays
HR30 Day 12: Inheritance
HR30 Day 13: Abstract Classes
HR30 Day 14: Scope
HR30 Day 15: Linked List
HR30 Day 16: Exceptions - String to Integer
HR30 Day 17: More Exceptions
HR30 Day 18: Queues and Stacks
HR30 Day 19: Interfaces

2 PHP

class Student extends person {
    private $testScores;
    public function __construct($first_name, $last_name, $identification, $scores) {
        parent::__construct($first_name, $last_name, $identification);
        $this->testScores = $scores;
    }
    function calculate() {
        $average = array_sum($this->testScores) / count($this->testScores);
        if( $average >= 90 ) return 'O';
        if( $average >= 80 ) return 'E';
        if( $average >= 70 ) return 'A';
        if( $average >= 55 ) return 'P';
        if( $average >= 40 ) return 'D';
        return 'T';
    }
}